Circular-knitting machine



(No Model.) I 3 Sheets-Sheet 1. N. J. WINLUND.

CIRCULAR KNITTING MACHINE.

N0. 451,Z85. Patented'Apr. 28, 1891.

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N. J. WINLUND.

CIRCULAR KNITTING MACHINE.

' Patented Apr. 28,1891.

3 Sheets-Sheet 3.

(No Model.)

N. J. WINLUND. CIRCULAR KNITTING MACHINE. No. 451,285. Patented Apr.28,1891.

4 [I Fr h UNITED STATES ATENT Fries.-

NICHOLAS J. VINLUND, OF ROCKFORD, ILLINOIS.

CIRCULAR-KNITTING MACHINE.

SPECIFICATION forming part Of Letters Patent N0. 451,285, dated April28, 1891. Application filed September 15, 1390. Serial No. 365,098. (Nomodel.)

To all whom it may concern.-

Be it known that I, NICHOLAS J. WINLUND, a subject of the King ofSweden, residing at Rockford, in the county of Vinnebagoand State ofIllinois, have invented certain new and useful Improvements inOircular-Knitting Machines, of which the following is a specification.

The object of this invention is to construct a knitting-machine of thecircular variety, in which the needle-cylinder will be slotted in itslengthwise direction and through the slots the shanks of the needles orof the needlejacks will project, and a cam will be located within thecylinder, so that in its rotary and oscillatory movement it will raiseand lower the needles in the manner common to machines of this class.

In the accompanying drawings, Figure 1 is a vertical central sectionthrough the needlecylinder and needle-operating cam. Fig. 2 is avertical central section through the needlecylinder. Fig. 3 is anisometrical representation of the cam employed to impart a reciprocatingmovement to the needles.

The needle-cylinderl in this instance stands in a vertical position whenin use, and has its periphery formed with I vertical needlegrooves 2,which extend nearly the length of the cylinder, a section 3 of each ofthe needle-grooves extending through the needle cylinder, and the lengthof the sections 3 is the length of the throw of the needles. lVithin theneedle-grooves are placed knitting-needles 4, and in this instance jacks5 are employed, so that the usual construction of needle can be used.These jacks engage the lower portions of the needles, and their functionis to form a connection between the needles and the cam employed toraise and lower the needles.

Bands 6 are employed to hold the needles and jacks in their position inthe grooves in the needle-cylinder. A base 7 extends from the lower endof the needle-cylinder and forms a support for the cylinder, which canbe secured in position in any convenient manner.

A needle-operating cam 8 is shown at Fig. 8, which in this instanceconsists of a cylinder having its outside diameter equal to the insidediameter of the needle-cylinder within which it is placed.

The periphery ofthe cam-cylinder is formed with a groove 9, which is ofirregular form and extends around the cylinder. This cylinder is placedwithin the needle-cylinder, and when in position its upper end comes incontact with an inward projection 10 of the cylinder, which has aninside diameter equal to the inside diameter of the cam-cylinder. Thiscam-cylinder is held in its position Within the needle-cylinder by acollar 11, which fits its reduced lower end 12, said collar beingsecured in place by screws, as shown, to the under side of thesupporting-flange of the needle-cylinder. The cam-cylinder held in thismanner is free to rotate and oscillate. v

The projections 13 ofthe jacks extend through the lengthwise grooves ofthe needlecylinder and enter the cam-groove of the camcylinder, so thatas the cam-cylinder oscillates or rotates the needles will be raised orlowered when the cam portion of the cylinder comes in contact with theprojections. To the lower end of the cam-cylinder is secured by screws,as shown, a bevel gear-wheel 14., which meshes with the bevel-gear 15,from which it receives its motion. By constructing a needle-cylinder inthis manner and locating a cam on the inside Iam able readily to removeany one of the needles withoutdisturbing their operating-cam and toprotect the cam from dirt.

I claim as my invention- 1. In a knitting-machine, the combination of aneedle-cylinder, cylinder needles upon the outside of the cylinder, anda cam operating upon the needles from the inside of the cylinder for thepurpose of raising and low ering the needles in the process of knitting,substantially as set forth.

2. In a knitting-machine, the combination of a needle-cylinder providedwith needlegrooves having sections extending through the cylinder, and aneedle-cam operating upon the needles from the inside of the cylinderfor the purpose of raising and lowering the needles in the process ofknitting, substantially as set forth.

3. In a knitting-machine, the combination of a needle-cylinder providedwith needlegrooves having sections extending through the cylinder, and acylinder located within the needle-cylinder, said cylinder provided ingand lowering them in the process of knit- IO ting, and means forimparting the required movement to the cam-cylinder, substantially asset forth.

NICHOLAS J. WVINLUND.

Witnesses:

A. O. BEHEL, E. MCSHURY.

